Implement __builtin_huge_val.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@46627 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CodeGen/CGBuiltin.cpp b/CodeGen/CGBuiltin.cpp
index d298b40..03fe13c 100644
--- a/CodeGen/CGBuiltin.cpp
+++ b/CodeGen/CGBuiltin.cpp
@@ -158,6 +158,7 @@
     Value *F = CGM.getIntrinsic(Intrinsic::bswap, &ArgType, 1);
     return RValue::get(Builder.CreateCall(F, ArgValue, "tmp"));
   }
+  case Builtin::BI__builtin_huge_val:
   case Builtin::BI__builtin_inff: {
     APFloat f(APFloat::IEEEsingle, APFloat::fcInfinity, false);
     return RValue::get(ConstantFP::get(llvm::Type::FloatTy, f));